135143515 has 16 divisors (see below), whose sum is σ = 182242368. Its totient is φ = 95458176.

The previous prime is 135143479. The next prime is 135143521. The reversal of 135143515 is 515341531.

It is a cyclic number.

It is not a de Polignac number, because 135143515 - 2¹⁷ = 135012443 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43704 + ... + 46693.

It is an arithmetic number, because the mean of its divisors is an integer number (11390148).

Almost surely, 2^135143515 is an apocalyptic number.

135143515 is a deficient number, since it is larger than the sum of its proper divisors (47098853).

135143515 is a wasteful number, since it uses less digits than its factorization.

135143515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90438.

The product of its digits is 4500, while the sum is 28.

The square root of 135143515 is about 11625.1243004107. The cubic root of 135143515 is about 513.1745027343.

The spelling of 135143515 in words is "one hundred thirty-five million, one hundred forty-three thousand, five hundred fifteen".